/////////////////////////////////////////////////////////////////////////////// 
// Copyright (C) 2002-2023, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable  
// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2023 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
///////////////////////////////////////////////////////////////////////////////

using Teigha.Core;
using Teigha.TD;

namespace SmartPlant.OdDrawingsLib.ExTrackers
{
    public class OdExStringTracker : OdEdStringTracker
    {
        public OdDbText TargetText { get; private set; }
        private OdDbText m_pCursor { get; set; }
        private bool m_bCursor { get; set; }

        public OdExStringTracker(OdDbText pText) : base(IntPtr.Zero, false)
        {
            TargetText = pText;
            m_bCursor = false;
            m_pCursor = pText.clone() as OdDbText;
            m_pCursor.setHorizontalMode(TextHorzMode.kTextLeft);
            m_pCursor.setVerticalMode(TextVertMode.kTextBottom);
        }

        public override void setValue(String value)
        {
            TargetText.setTextString(value);
            TargetText.adjustAlignment();

            m_pCursor.setTextString(m_bCursor ? "I" : String.Empty);

            if (m_bCursor)
            {
                OdGePoint3dArray bounds = new OdGePoint3dArray();
                TargetText.getBoundingPoints(bounds);
                m_pCursor.setPosition(bounds[3]);
            }
            m_bCursor = !m_bCursor;
        }

        public override void setCursor(bool bShowCursor)
        {
            m_pCursor.setTextString(bShowCursor ? "I" : String.Empty);
            if (m_bCursor = bShowCursor)
            {
                OdGePoint3dArray bounds = new OdGePoint3dArray();
                TargetText.getBoundingPoints(bounds);
                m_pCursor.setHeight(TargetText.height());
                m_pCursor.setPosition(bounds[3]);
            }
        }

        public override int addDrawables(OdGsView pView)
        {
            pView.add(TargetText, null);
            pView.add(m_pCursor, null);
            return 1;
        }

        public override void removeDrawables(OdGsView pView)
        {
            pView.erase(m_pCursor);
            pView.erase(TargetText);
        }
    }
}
